thanks bike spokes looks / sounds great but then found out a 1.6mm drill works ok this morning as a 1.5 was tight,, drilled holes 1 3 5 one side and 2 4 the other thanks for all input

Agree with Doug. I use bicycle wheel spokes. Got an old wheel from my local bicycle shops scrap pile for free.
Got enough rods now for the rest of my life!

Hi Jacko,
So what's the problem!?😉
Drill out the servo arms to match.
Or; forget the clunky commercial clevis pins and simply make a push rod from spring steel rod. Don't let the manufacturers dictate to you!!
Use your imagination; and a couple of pairs of pliers 😁
Cheers, Doug 😎